Question

The nurse is aware that particular populations are prone to vitamin deficiencies for various reasons. Why are older adults prone to vitamin D deficiency?

A)They excrete more vitamin D than younger adults do.
B)Aging reduces the kidneys' ability to activate vitamin D.
C)Their fixed incomes limit buying enough foods rich in vitamin D.
D)They are more likely to take prescription medicines that interfere with vitamin D absorption.

Answer 1

Older adults are prone to vitamin D deficiency due to aging, decreased kidney function, increased excretion, and medication interference.

Step-by-step explanation:

Older adults are prone to vitamin D deficiency due to several factors:

1. Aging reduces the kidneys' ability to activate vitamin D: As individuals age, their kidneys become less efficient in converting calcidiol to the active form of vitamin D, calcitriol. This decreased activation of vitamin D can lead to a deficiency.
2. They excrete more vitamin D than younger adults do: Older adults tend to have higher urinary excretion of vitamin D, which can contribute to lower levels of active vitamin D in the body.
3. They are more likely to take prescription medicines that interfere with vitamin D absorption: Many older adults take medications that can interfere with the absorption of vitamin D, such as certain antacids, corticosteroids, and anticonvulsants.